Detachable connection



E. C. WAMELINK.

DETACHABLE CONNECTION.

APPLICATION FILED FEB. a, 1922.

1,432m45. Patented Oct. 17,1922.

Patented Oct. 17, 1922.

EUGENE C. 'WAMELINK, E CLEVELAND HEIGHTS, OHIO.

DETACHABLE oonmzc'rron'.

Application filed February 6, 1922. Serial No. 534,639.

To all whom it may concern.

Be it known that I, EUGENE C. WAIuE- LINK, a citizen of the United States, residing at Cleveland Heights, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvement 1n Detachable Connections, of which the followtending to disengage the said arts. Further and more limited objects 0 the invention will appear hereinafter and will be secured in and through the combinations and arrangements of parts illustrated in the drawings hereof and set forth in the claims hereto annexed.

Referring to the aforesaid drawings, Fig. 1 represents a side elevation of a cap or closure and the cooperating ,part of the object to which the cap or closure is applied, the parts having my invention applied thereto; Fig. 2 is a sectional elevation of the parts shown in Fig. 1; Fig. 3 an elevation of the cap or closure, taken from the open end of the same; Fig. 4 adetailin perspective of the locking wires with which the cap 18 provided, showing the positions which the wires assume when assembled within the cap; and

Fig. 5 a development of the said Wires and of the seats therefor.

Describing the various parts by reference characters, 1 denotes a supporting body which, in the embodiment shown herein, may be a hub, said body being cylindrical and having a short reduced cylindrical extension 2 and a longer reduced cylindrical extension 3, the latter extension'constituting the end of the supporting body. A relatively narrow shoulder 2 is -interposed between the main bod 1 and the short' reduced extension 2, whi e a considerably Wider shoulder 3 is interposed between the end of the part 2 and the adjacent end of the part 3. The reduced .cated at 8 and 9.

end 3 is provided with a pair of pins or studs 4, preferably located about 180 apart, the length of these studs or pins being preferably equal to the width of the shoulder 3.

Cooperating with the parts 1, 2 and 3 is a cap or closure. This cap or closure comprises a cylindrical body or skirt 5, one end of which is adapted to be slipped over the reduced part 2 of the supporting member and to abut against the shoulder 2 and preferably to form in effect a continuation of the part 1 when so assembled.

The opposite end of the part 5 is provided with an inwardly projecting flange 6 from which there projects an angular portion 7 constituting with the part 6 a closure for the outer end of the cylindrical body 4 as well as forming a nut for the reception of a wrench. The portion 4 of the cap or closure is provided with a pair of grooves formedby pressing ribs 8 and 9 outwardly therefrom, the said ribs being preferably at right angles to the axis of the cap or closure and of the cylindrical body 1, the grooves being indi- These grooves serve to support the spring wires which constitute the double resilient thread by means of which the cap or closure is detachably connected to the parts? through the pins 4. The two wires which constitute this resilient thread are identical in construction, andthe operating parts of each are indicated generally at 10. The aforesaid operating parts are the intermediate parts of said wires each of which has a part 10 which is embedded within the groove 8 and preferably secured therein by crimping or pressing the metal constituting the rib 8 about such extension. The intermediate ortion 10 of each of the wires is inclined 1n the shape of a coarse thread from the groove 8 toward the groove 9, each being provided in such operating part with a seat l0 formed by bending each wire outwardly or toward the end 7 of the cap or closure. Each of the wires 10 is then pressed'radially outwardly, as shown at 10, into the groove 9 where it is secured b crimping the metal of the rib '9 therearoun When assembled, the end portions 10 and 10 of each wire are embedded in their grooves 8 and 9 so as to leave the inner surface of the part 5 unobstructed.

By reference to Fig. 5, which shows a development of the interior of the cap or closure and the wires and in which development, for clearness of illustration, the part at the right of the line a-a is a repetition of the part at the left hand end of such view, it will be seen that clearance is provided at the right of each locking projection 10 and at the left of the end of the operating part 10 of the adjacent wire for the reception of a stud 4-see also the spaces 11 provided at the top and bottom of Fig. 3 for the same purpose. Therefore, in applying the cap or closure to the part 3, no special care need be taken, as by pressing inwardly on the cap and turning the same, the studs 4 will find the spaces 11 rovided for their reception. Each stud wlll, through further rota-.

tion of the cap in the direction indicated by the arrow on F i 5, engage the outer surface of the part 10 0 its cooperating wire thread, the rotation of the cap or closure causing the same to be drawn inwardly until it is seated upon the shoulder 2*. Because of the resilience of the threads 10, the outwardly projecting locking seats 10 may be provided therein for the studs 4 and at the same time the inner or seating end of the cap or closure will be held in firm engagement with its shoulder 2 the resilience of the wire threads permitting this action.

The construction described enables the closure to be applied quickly and conveniently to the part 3, without any difficulty in finding the threads or any possibility of crossing threads. Furthermore, the resilience of the coarse threads provided by the wires 10 enables the studs to be seated firmly in the parts 10 without any danger or liability of t e cap or closure becoming disconnected. When it is desired to remove the cap, a Wrench or similar object may be applied to the part 7 and, by rotating the cap in the reverse direction, the studs 4 will ride out of their seats 10 and the cap or closure may be very easily removed.

With the parts arranged as shown herein, the projections constituted by the seats 1O will advise the operator when the ea or closure has been screwed home, as wel as when the cap or closure has been unscrewed a sufiiclent distance to permit the disengagement of the studs from the'wire threads and hence the removal of the cap or closure. While I have shown my invention as employed with a cap or closure for an article similar to a hub, it will be evident that it may be employed in various installations where a detachable connection is desired between two telescopically arranged articles.

Having thus described my invention, what I claim is: 1. The combination, with a member havmg a plurality of pins or studs projecting therefrom, of a member adapted to telescope upon the first mentioned member and having resllient threads therein adapted to cooperate with said pins or studs, thereby to force the second member along the first 2 6 1- her by relative rotary movement between said members.

2. The combination, with a member having a plurality of pins or studs projecting therefrom, of a member adapted to telescope upon the first mentioned member and having inclined resilient wires therein adapted to cooperate with said pins or studs thereby to force the second member along the first member by relative rotary movement between said members.

3. The combination, with a member having a plurality of pins or studs projecting therefrom, of a second member adapted to form a telescoping connection with the first mentioned member and having resilent inclined portions adapted to cooperate with said studs thereby-t0 impart axial movement to said members by relatlve rotary movement thereof.

4. The combination, with a member having a plurality of pins or studs projecting therefrom, of a second member adapted to form a telescoping connection with the first mentioned member and having resilient inclined wires adapted to form threads cooperating with said pins or studs thereby to impart axial movement to said members by relative rotary movement thereof.

5. The combination, with a member having a plurality of pins or studs projecting therefrom, of a second member adapted to form a telescoping connection with the first mentionedmember and having resilient inclined portions adapted to cooperate with said pins or studs thereby to impart axial movement to said members by the rotation of either of the same, at least one of said resilient portions being provided with a seat adapted to receive the pin or stud at the end of the rotary movement which connects the said members.

6. The combination, with a member having a plurality of pins or studs projecting therefrom, of a second member adapted to form a telescoping connection with the first mentioned member and having resilient inclined wires adapted to form threads cooperating with said pins or studs thereby to impart axial movement to said members by the rotation of either of the same, at least one of said wires being provided with a seat adapted to receive its pin or stud at the end of the rotary movement which connects the said members.

'7. The combination, with a member having pins or studs rojecting therefrom, of a second member a apted to form a telescoping connection with the first mentioned member and having a pair of groovesextending therearound, a pair of wires each having one end portion embedded in one of said grooves and its opposite end portion embedded in the other groove, the end portions of each wire being connected by a r esapee constitutingv athreadwhich is adapted to cooperate with one of said studs.

8. The "combination, with a member having a pair of pins or studs projecting therefrom, of a'second member adapted to form.

a telescopin connection with the first mentioned mem er,"a pair of wireseach having an intermediate portion arranged to form a resilient thread cooperating with one of said pinsor studs and each'having its opposite ends secured within recesses provided therefor in said second member.

9. The combination, with a cylindrical member having I a reduced cylindrical extension connected thereto by a shoulder and Ta second reduced cylindrical extension pro 'jecting from the first extension, of a plurality of pins or studs carried by the second projection, a cap having a skirt adapted to engage the first mentioned shoulder and having within said skirt resilient threads each adapted to cooperate with a pin or stud thereby to draw the said skirt to a seat against the first mentioned shoulder, each of said threads having an offset portion constituting a stop .for its pin or stud.

10. The combination, with a member having a seat, of a lurality of pins or studs carried by said member, a second member adapted to engage said seat and having resilient threads therein, each ada ted to cooperate with a pin or stud there y to draw.

the second member to said seat, at least one stitutin -a sto for its pin or stud.

11." efc'om ination, with a cylindrical member havin a reduced cylindrical extension connecte thereto by a shoulder and a second reducedcylindrical extension projectin from the first extension, of a plurality 0 pins ,or studs carried by the second projection, a cap having a skirt adapted to engage the first mentioned shoulder and havin within said skirt a pluralit .of

} radial y outwardl extending longitu inally spaced circum' erential grooves, and resilient wires each having one end embedded in one of said grooves and its opposite end embedded in another of said grooves with an intermediate inclined portion constituting a resilient thread, each of said wires having an oflset therein adjacent to the inner of said groives to provide a seat for its cooperating stu 12. The combination, with a member having .a pin or stud profijecting therefrom, of a member adapted to orm a telescoping connection with the first mentioned member and having a resilient inclined portion adapted to cooperate with said pin or stud thereby to draw said members together through relative rotary movement there between.

In testimony whereof, I hereunto afiix my signature.

EUGENE o. /WAMELINK:

projecting intermediate inclined portion of said threads having an ofi'set portion con- 

